Choke thermostat problem

If you are using the wrong gasket between the carburetor and the intake manifold (too thin, 3mm instead of 8.5mm) the choke thermostat pushrod will effectively be too long.

I finally got all parts to make a serious job.
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The two studs with crenelated nuts and brass conical wahers are for my exhaust manifold as I plan to improve the intake/exhaust manifolds combo installation...
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Now, just have to wait for better weather conditions. It's a little bit too much cold for me :)